Fujitsu SCANSNAP! FI-4110EOX2 Operator's Manual page 58

ATTENTION
■ [Custom...] button
Specify the size of the document, that you want to scan, in the dialog box. It is possible
to specify sizes in a range from a width of 55 to 216 mm (2.17 in. to 8.5 in.) and a
length of 90 mm to 360 mm (3.54 in. to 14.17 in.).
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When "Automatic detection" is selected, documents that are not standard sizes
are scanned as if they were the standard size (Letter, Legal, A4, B5, A5, B6,
A6, or Business card) that is closest to their length. Because of this, the mar-
gins may be scanned and scanning may be interrupted. To scan these kinds of
documents that are not standard sizes, select "Custom" in "Paper size:" and
then specify the document size in the dialog box that appears when you click
the [Custom...] button.